# Health Care Service Corporation

Vlada entity `le:000089` · legal entity · holds 9 instruments directly and 25 through subsidiaries

**Identifiers.** cms_org_name HEALTH CARE SERVICE CORPORATION; cms_org_name Health Care Service Corporation; ein 361236610; naic 70670

**Owns or controls.**
- AHS-TULSA OKLAHOMA HEALTH PLAN, INC. (`le:001100`), start 2014-02-01, no end found (last seen 2014-08-31)
- AHS-TULSA OKLAHOMA HEALTH PLAN, INC. (`le:001100`), start 2013-12-01, still true
- BLUE CROSS AND BLUE SHIELD OF OKLAHOMA (`le:000635`), start 2005-11-01, no end found (last seen 2007-10-31)
- BLUE CROSS AND BLUE SHIELD OF OKLAHOMA (`le:000635`), start 2005-11-01, still true
- BRAVO HEALTH MID-ATLANTIC, INC. (`le:000229`), start 2025-03-19, still true
- BRAVO HEALTH PENNSYLVANIA, INC. (`le:000502`), start 2025-03-19, still true
- Blue Cross and Blue Shield of Montana (`le:003938`), start 2013-08-01, still true
- CIGNA HEALTHCARE OF COLORADO, INC. (`le:000086`), start 2025-03-19, no end found (last seen 2026-02-28)
- GHS HEALTH MAINTENANCE ORGANIZATION, INC. (`le:000873`), at least since 2014-01-01, still true
- GHS INSURANCE COMPANY (`le:001320`), at least since 2015-01-01, still true
- GHS MANAGED HEALTH CARE PLANS, INC. (`le:002302`), at least since 2014-09-01, no end found (last seen 2017-12-31)
- GROUP HEALTH SERVICES OF OKLAHOMA, INC. (`le:001755`), at least since 2006-08-01, no end found (last seen 2007-09-30)
- HCSC INSURANCE SERVICES COMPANY (`le:000424`), at least since 2006-08-01, still true
- HEALTHSPRING HEALTHCARE OF COLORADO, INC. (`le:000088`), at least since 2026-03-01, still true
- HEALTHSPRING LIFE & HEALTH INSURANCE COMPANY, INC. (`le:000237`), start 2025-03-19, still true
- HEALTHSPRING OF FLORIDA, INC. (`le:000964`), start 2025-03-19, still true
- ILLINOIS BLUE CROSS BLUE SHIELD INSURANCE COMPANY (`le:002339`), at least since 2021-01-01, still true
- MEDCO CONTAINMENT LIFE & MEDCO CONTAINMENT NY & HEALTH CARE SERVICE CORPORATION (`le:001608`), at least since 2026-06-01, still true
- MEDCO CONTAINMENT LIFE AND MEDCO CONTAINMENT NY (`le:001605`), start 2025-03-19, still true
- The Cigna Group Medicare Advantage, Cigna Supplemental Benefits, Medicare Part D and CareAllies businesses (`le:004036`), start 2025-03-19, still true

**Holds.** Marketplace issuer: 5; Medicare contract: 4

- H0107 (`contract:H0107`)
- H3251 (`contract:H3251`)
- H3822 (`contract:H3822`)
- H8634 (`contract:H8634`)
- Health Care Service Corporation, a Mutual Legal Reserve Company (`hios:30751`)
- Health Care Service Corporation, a Mutual Legal Reserve Company (`hios:33602`)
- Health Care Service Corporation, a Mutual Legal Reserve Company (`hios:36096`)
- Health Care Service Corporation, a Mutual Legal Reserve Company (`hios:75605`)
- Health Care Service Corporation, a Mutual Legal Reserve Company (`hios:87571`)

Tools: `resolve_entity(text="Health Care Service Corporation")`, `describe_entity(entity_id="le:000089", on="YYYY-MM-DD")`.